18300 3.7V 800mAh Lithium Capacitor Battery

800mAh Lithium Capacitor Battery Structural Design

Engineers manufacture the 800mAh lithium capacitor battery using a compact cylindrical configuration that combines lithium-based electrochemical storage with capacitor-style structural characteristics. First, they laminate cathode foil, separator membrane, and anode foil into a multilayer strip arrangement. Then, they wind the assembled layers into a dense spiral core while carefully controlling alignment accuracy and winding pressure. Meanwhile, technicians monitor dimensional consistency throughout the process to reduce internal deviation and maintain balanced layer spacing. After core formation, they install the assembly into a precision cylindrical enclosure and secure the internal structure before electrolyte processing begins.

Material Composition and Layer Construction

Manufacturers produce the cathode by coating lithium transition-metal compounds onto aluminum current collectors, while they fabricate the anode using graphite-based carbon slurry deposited on copper foil. In addition, they introduce a microporous polyolefin separator to support ionic conduction and maintain electrical isolation between electrode layers. Furthermore, they formulate the electrolyte with lithium salt dissolved in organic carbonate solvents, and they strictly regulate moisture exposure during preparation and storage. Meanwhile, the cylindrical housing uses reinforced steel or aluminum alloy material to preserve structural rigidity under sealed operating conditions.

Electrode Fabrication and Core Assembly Process

Technicians begin by dispersing active powders, conductive additives, and polymer binders into a homogeneous slurry system. Subsequently, they coat the slurry onto metal foils through precision coating equipment and execute staged drying to remove residual solvents. Afterward, calendaring rollers compress the coated electrodes to achieve controlled density and uniform thickness. Next, they slit the electrode sheets into narrow strips and feed them into automated winding machines to create a compact jelly-roll structure. At the same time, operators connect current tabs through ultrasonic or resistance welding techniques to ensure stable electrical continuity.

Formation Cycling and Quality Verification Standards

Engineers perform controlled formation cycling to activate electrochemical interfaces and stabilize internal reaction layers within the cell. Afterwards, they conduct thermal aging procedures under monitored environmental conditions to evaluate impedance stability and voltage consistency. Finally, quality control teams complete insulation resistance testing, dimensional verification, and sealing inspection before shipment approval. Throughout manufacturing, producers comply with IEC 62133 and UN38.3 standards, ensuring the 800mAh lithium capacitor battery satisfies international safety, transport, and structural reliability requirements.

Product Features

1. 🛠️ Customizable
   Customizable to meet customer requirements
2. ⚡ High Power
   Max. 20C discharge rate available
3. ⏱️ Long Cycle Life
   Meets long-term product usage needs
4. 🛡️ High Safety
   Passed comprehensive safety tests
5. 🔋 True Rated Capacity
   Matches the product design capacity
6. ⚛️ Multi-Chemistry Options
   Covers LCO, NCM, NCA and LFP systems
7. 🧰 Multi-Protection Mechanism
   Built-in protection board with overcharge, overdischarge, overcurrent and short-circuit protection

Product Application Areas

This product is suitable for a variety of portable and powered electronic devices, with typical applications including:

• Personal Care & Health: Electric Toothbrushes, Beauty Devices, Fitness Trackers, Medical Devices

• Smart Digital & Audio: Headphones, Speakers, Nebulizers, Toys, Lights

• Financial Payment & Office: POS Machines, USB Tokens, Portable Printers